: You can use an English Patch for the UI on Android or PC (using BepInEx).
To play Duel Masters online, you have several options ranging from official Japanese apps with English patches to manual community simulators. 1. Duel Masters PLAY'S (Official App) play duel master online
If you want to play with the original English cards or specific sets, these manual simulators are the top choices: PLAY DUEL MASTERS ONLINE GAME HERE ! : r/DuelMasters : You can use an English Patch for
: Includes fully automated rules, ranked matches, and single-player modes with legendary duelists. 2. Community Simulators (Best for English TCG) play duel master online
: It can be downloaded via QooApp for mobile or through Softonic for PC.